Curious about how the sculpture came to be? Doug Pray made a documentary, Levitated Mass: The Story of Michael Heizer's MonolithicSculpture, whichdebuted in 2013. The film traces the boulder's famed journey from concept to completion. Read more about the experience of filming Levitated Mass in this interview with the filmmaker.

Once the boulder got to LACMA, the artwork was put together over several months. The "rock" was taken off the transporter and placed atop a 456-foot-long slot.

Were you here on opening day in 2012? See if you can spot yourself in these photos!